If the Oxygen supply in the atmosphere was not replenished by plants, it would soon be exhausted.

Câu hỏi liên quan

• I’m trying to save up for a trip to Canada, so I can’t afford buying much at the moment.

• Each year, people around the world spending billions of dollars buying merchandise on the Internet.

• Mining over 2,000 years ago, copper is one of the earliest known metals.

ZUNIA12

• A City University Professor reported that he discovers a vaccine which has been 80 % effective in reducing the instances of tooth decay among small children

• Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.

  She made her son _____ the window before he could go outside _____ with his friends.

• The world would look eerie different if human eyes were sensitive to infrared radiation.

• Choose one word or phrase marked A, B, C, or D that best complete the preceding sentence:

  We couldn’t get a seat__________ we arrived quite early.

• Choose one word or phrase marked A, B, C, or D that best complete the preceding sentence:

  The ceiling is__________.

• The Maelstrom is a swift and danger current in the Arctic Ocean.

• Choose the best answer

  Women are more likely to be victims of ____ violence.

• Mark the letter A, B, C, or D on your answer sheet to indicate the best answer in each of the following questions:

  Dick __________ in London when I last saw him.

• All almost the electricity for industrial use comes from large generators driven by steam turbines.

• This bird’s tail is double as long as its body.

• Choose the best answer:

  Pele is famous                       his powerful kicking and controlling the ball.

• Choose the best options

  People           tennis indoor.

• Science  and technology are part of the knowledges of educated people

• Playing for the national team for the first time was an forgot experience for Hong Son

• Several million points on the human body registers either cold, heat, pain, or touch.

• Choose the best word or phrase to complete the following sentences:

  Mary usually walks to school but today she _________ a bike. 

• Find the ONE among the underlined and marked A, B, C, D in each of the following sentences that needs correcting:

  Andy was standing among the competitors whose were ready for the competition.